Networker

[Networker] Identifying backups, policies, and tapes

2004-12-13 16:52:03
Subject: [Networker] Identifying backups, policies, and tapes
From: "Fields, David" <David.Fields AT ACS-INC DOT COM>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Mon, 13 Dec 2004 16:50:58 -0500
Does anyone know how to write script that can tell me what tapes are
required based on the browse and retention polices for any given server at
any specified point in time?  For example, if you use Full/incremental
backups for all backups, and a browse/retention policy of say, 4 weeks as
our working parameters (in this case, there's no reason for the retention
policy to exceed the retention policy).  If you run a backup on the
following schedule:

   1     2    3    4     5    6   7    8    9   10   11   12
  Mon  Tues  Wed  Thur  Fri  Sat Sun  Mon  Tue  Wed  Thu  Fri
  Full Incr  Incr Incr  Incr Skp Skp  Incr Full Incr Incr Incr

Then, the Full that was taken on the first Monday can't expire until all of
the incrementals that it depends on expire, in this case the incrementals on
steps 2-8.

Basically, what this means is that the tapes used in these backups also
share these dependencies (and usually others).   However, I can't seem to
find a way to see a list of what tapes are needed in a report so that I can
verify when a tape is supposed to be expiring.  I can write a script to
infer the information by figuring out what tapes were used for a the full
and incremental backups, but I would like for the report to be based on what
Networker thinks the are the dependencies involved.  I suppose I could go to
the Networker User program and see what times it would require to perform a
"full restore" on the date of the last incremental of the chain since that
should show me the same tapes, but again, that is not really what I'm
wanting to do.

If anyone knows how to do this, please let me know.  I've poured over the
mminfo and nsrinfo commands, but I don't see anything that can generate this
type of report.

Thanks

David

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